Add to cart Apex™ $58.00 A soft, semi-pliable disk-shaped weight measuring 5” and weighing 4 lb. It functions as a yoga prop and a therapeutic tool. It can be placed on the head to integrate and lengthen the spine or in the hands for grip strength and joint-stability. This is an effective tool for helping with posture, trunk stability, and physical rehabilitation. Hand-sewn in the USA with sustainable canvas and filled with pure steel shot.